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Finding the Fourth Proportional to 143,833.68, 198,491.46 and 80,175.48

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Solution

The fourth proportional to 143,833.68, 198,491.46 and 80,175.48 is: 110,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,833.68 : 198,491.46 = 80,175.48 : x
  2. Step 2: Convert to fraction form
    143,833.68/198,491.46 = 80,175.48/x
  3. Step 3: Cross multiply
    143,833.68x = 198,491.46 × 80,175.48
  4. Step 4: Simplify right side
    143,833.68x = 15,914,148,081.40
  5. Step 5: Solve for x
    x = 15,914,148,081.40/143,833.68
  6. Step 6: Final answer
    x = 110,642.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.